JPS5525215A - Automatic equalizer - Google Patents
Automatic equalizerInfo
- Publication number
- JPS5525215A JPS5525215A JP9727278A JP9727278A JPS5525215A JP S5525215 A JPS5525215 A JP S5525215A JP 9727278 A JP9727278 A JP 9727278A JP 9727278 A JP9727278 A JP 9727278A JP S5525215 A JPS5525215 A JP S5525215A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- phase
- output signal
- supplied
- correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
PURPOSE:To give correction to the phase fluctuation and the inter-code interference without lowering the equalization accuracy by using the phase rotary circuit featuring a simple constitution and with no use of the complicated phase rotary circuit containing the multiplier circuit. CONSTITUTION:DC input signal 101 is supplied to convolutional adder circuit 102. The output signal of circuit 102 is supplied to decision circuit 104 deciding the transmission code via phase correction circuit 103 which gives the phase correction based on the follow-up phase supplied through terminal 18, thus delivering decision output signal 105. Then the output signal of circuit 102 is supplied to subtractor circuit 106 along with the output signal phase reverse correction circuit 201 which gives the phase reverse correction based on the follow-up phase supplied through terminal 109 to decision output signal 105, thus growing the equalization residual error signal. The output signal of circuit 106 is used as the control signal to give correction to the tap coefficient of circuit 102.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9727278A JPS5525215A (en) | 1978-08-11 | 1978-08-11 | Automatic equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9727278A JPS5525215A (en) | 1978-08-11 | 1978-08-11 | Automatic equalizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5525215A true JPS5525215A (en) | 1980-02-22 |
| JPS6111494B2 JPS6111494B2 (en) | 1986-04-03 |
Family
ID=14187883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9727278A Granted JPS5525215A (en) | 1978-08-11 | 1978-08-11 | Automatic equalizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5525215A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145716A (en) * | 1982-02-25 | 1983-08-30 | Kazuo Saotome | Graft polymer composition |
| JPS61111025A (en) * | 1984-11-05 | 1986-05-29 | Nec Corp | Automatic equalizer |
| US5891962A (en) * | 1994-09-20 | 1999-04-06 | Mitsui Chemicals, Inc. | Transparent, rubber-modified styrene resin and production process thereof |
| WO2002069592A1 (en) * | 2001-02-27 | 2002-09-06 | Matsushita Electric Industrial Co., Ltd. | Decoder and decoding method |
-
1978
- 1978-08-11 JP JP9727278A patent/JPS5525215A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145716A (en) * | 1982-02-25 | 1983-08-30 | Kazuo Saotome | Graft polymer composition |
| JPS61111025A (en) * | 1984-11-05 | 1986-05-29 | Nec Corp | Automatic equalizer |
| US5891962A (en) * | 1994-09-20 | 1999-04-06 | Mitsui Chemicals, Inc. | Transparent, rubber-modified styrene resin and production process thereof |
| WO2002069592A1 (en) * | 2001-02-27 | 2002-09-06 | Matsushita Electric Industrial Co., Ltd. | Decoder and decoding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6111494B2 (en) | 1986-04-03 |
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